INFORMATION RECORDING DEVICE, INFORMATION RECORDING METHOD, INFORMATION RECORDING MEDIUM, AND COMPUTER PROGRAM

摘要

An information recording device (1) records information on a groove portion (106) of a recording type information recording medium (100). A recording layer (1122) is stacked on a land portion (105) included at least in a reproduction setting region (101a) of a recording surface of the information recording medium. The recording layer (1122) has optical characteristics to be changed upon receiving light irradiation so as to reduce the detection amount of a push-pull signal in the reproduction setting region (101a). The information recording device (1) is equipped with a characteristic changing means (202) for uniformly illuminating the land portion included at least in the reproduction setting region.